NONLINEAR ANALYSIS OF SHEAR WALL IN UNIFIED PERFORMANCE BASED SEISMIC DESIGN OF BUILDINGS

Frame - shear wall buildings are common for high rise multi-storied RC buildings. When these walls are situated in advantageous positions in a building, they perform as an efficient lateral-force resisting system, and also fulfilling other functional requirements. In conventional analysis, shear wall is modeled as wide column, which does not always provide the realistic behavior of a shear wall. In this present work, buildings have been modeled and designed, and a detailed analysis is carried out on structural walls. The building frame and length of shear wall design has been carried out by Unified Performance Based Design (UPBD) with takes both elastic and plastic rotation into consideration along with performance level. In this study shear walls are modeled as multi layered shell element which is an advanced addition in SAP2000 software. A few challenges in interpreting the performances of shear wall as per UPBD method were faced while using shell element. Non-linear analysis with shell element is carried out and attempts to interpret its performance in terms of stresses in different layers and hinge rotation have been carried out.